[Form 4] SiTime Corporation Insider Trading Activity

Rhea-AI Filing Summary

Sevalia Piyush B, EVP Marketing of SiTime Corporation (SITM), reported a sale of 2,703 shares of common stock on 08/20/2025 at a reported price of $221.6 per share. Following the transaction the reporting person beneficially owns 82,813 shares, which include 76,146 shares issuable under previously reported restricted stock units and performance-based restricted stock units that have not vested. The unvested units break down into 29,126 time-based RSUs and 47,020 performance-based RSUs that vest based on specified price performance conditions. The Form 4 was signed by an attorney-in-fact on 08/22/2025.

Positive

• Transparent disclosure of the sale and detailed breakdown of unvested RSUs and performance-based RSUs
• Large retained holding of 82,813 shares, primarily composed of equity awards that align executive incentives with company performance

Negative

• Disposition of 2,703 shares on 08/20/2025 at a reported price of $221.6
• Majority of beneficial ownership is unvested (76,146 shares), meaning current economic ownership is contingent on future vesting and performance conditions

Insights

Financial Analyst

TL;DR: Insider sold a small block of shares while retaining a large holding largely tied to unvested RSUs/PSUs.

The filing shows a single open-market disposition of 2,703 shares at $221.6, leaving total beneficial ownership of 82,813 shares. The majority of the reported balance (76,146 shares) consists of unvested equity awards, split between time-based and performance-based units. For valuation or ownership-change analysis, the presence of a sizable unvested award pool is important because it links future ownership to company performance metrics and vesting schedules. No additional transactions or derivative activity are reported.

Corporate Governance Expert

TL;DR: Disclosure is routine and compliant; sale disclosed and award vesting structure is clearly summarized.

The Form 4 provides the required disclosure of a disposition and a clear explanation of outstanding unvested awards, including the split between time-based and performance-based units. The filing identifies the reporting persons role (EVP, Marketing) and includes a signature by an attorney-in-fact. There are no governance red flags or indications of unusual related-party transfers in the disclosed items.

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Sevalia Piyush B

(Last) (First) (Middle)

C/O SITIME CORPORATION

5451 PATRICK HENRY DRIVE

(Street)

SANTA CLARA CA 95054

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
SITIME Corp [ SITM ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	See Remarks

3. Date of Earliest Transaction (Month/Day/Year)
08/20/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	08/20/2025		F		2,703	D	$221.6	82,813(1)	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. Includes an aggregate of 76,146 shares of common stock issuable pursuant to previously reported restricted stock units and performance-based restricted stock units that have not vested. These unvested units include 29,126 restricted stock units that vest over time, and 47,020 performance-based restricted stock units that vest based on certain absolute and relative price performance of the issuer's common stock over various performance periods.

Remarks:

EVP, Marketing

	Samsheer Ahamad, Attorney-in-fact	08/22/2025
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What did Sevalia Piyush B (SITM) report on Form 4?

The Form 4 reports a sale of 2,703 shares on 08/20/2025 at $221.6 per share and a post-transaction beneficial ownership of 82,813 shares.

How many unvested RSUs/PSUs does the reporting person have?

The filing discloses 76,146 unvested units: 29,126 time-based RSUs and 47,020 performance-based RSUs.

What is the reporting persons role at SiTime (SITM)?

The filing lists the reporting person as EVP, Marketing.

When was the Form 4 signed?

The Form 4 shows a signature by an attorney-in-fact dated 08/22/2025.

Does the filing report any derivative transactions?

No. Table II (derivative securities) contains no reported transactions in this filing.